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(510 Model.)

O. H. STRAIGHT.

Rubber Boot.

No. 242,802. Patente d June 14, I881.

IN'VE NTOR? UNITED STATES PATENT OFFICE.

CLARK H. STRAIGHT, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE-HALF TOSAMUEL LINDSEY, JR, OF SAME PLACE.

RUBBER BOOT.

SPECIFICATION forming part of Letters Patent No. 242,802, dated June 14,1881.

Application filed April 20, 1881. (No model.)

To all whom it may concern Be it known that I, CLARK H. STRAIGHT, of thecity and county of Providence, and State of Rhode Island, have inventeda new and useful Improvement in Rubber Boots; and I hereby declare thatthe following is a full, clear, and exact description of the same,reference being bad to the accompanying drawing, forming part of thisspecification.

In the manufacture of rubber boots the interior. of the boot is made ofa felted fabric, which is placed upon the boot-tree, and to this thevarious sheets and strips of rubber are secured by rubbing them, so asto expel all air and make a firm contact. The edges of the felt formingthe upprr and leg meet at the center of the heel.

In wearing rubber boots the heel portion of the felt is soon wornthrough, and also by its friction soon wears the stocking. To avoidthis, and also to secure greater strength to the leg of the boot, Iplace a strip of canvas on the back of the heel and the leg, as will bemore fully set forth hereinafter.

The drawing represents a rubber boot, one side being shown as cut awayso as to show the canvas lining more clearly.

In the drawing, a represents the sole of the boot, b the leg of thesame, and c a strip of canvas secured either over thejointof thefelt'lining, or, preferably, inserted between the felt lining, so that thecanvas (a stronger and cheaper materiatthan the felt) will take theplace of the felt. The canvas strip a, to produce the best effect,should extend from the sole to the upper edge of the boot-leg; but itmay extend only part of this length, as the wearing out of the feltlining is greatest atthe heel. The canvas strip 0 is in the manufactureof the boot placed first 011 the boot-tree, the

felt lining next, and the sheets of rubber are secured to them. The softrubber will penecost by substituting in part a cheaper material second,greater durability; third, the canvas prevents the stocking from wearingout on the heel; fourth, the lining keeps the back of the bootstraightaud prevents it from cracking or breaking; fifth, the liningallows the boot to go on or off with more case than an all-feltlinedboot and, sixth, it is more durable, as the common felt lining soonwears away at the back of the heel, and the substance collects in thebottom of the heel and becomes very troublesome.

In this invention the canvas may be used at the rear portion of the bootto take the place of thefeltlining on the boot-tree, so that the edgesof the felt will lap over the edges of the canvas strip; butit may alsobe used as a strengthening-strip only by placing the feltlining so as tomeet behind the canvas strip.

Having thus described my invention, I claim as new and desireto secureby Letters Patent A rubber boot provided with a strip of canvas at therear of the boot, substantially as shown, and for the purpose set forth.

In witness whereof I have hereunto affiXed my name.

CLARK H. STRAIGHT.

Witnesses:

SAMUEL LINDSEY, Jr., J OSEPH A. MILLER, Jr.

